Evidence of this is in the recommended use of 40 micron filtration as opposed to expensive 5 micron filtration recommended for most competitive valves. Low friction and high shifting forces result in a very fast, highly repeatable air valve that can handle contamination. MAC's patented oval amature creates higher shifting forces over competitive valves of the same size through more core metal and windings. This also contributes to very low friction in the bore of the valve. MAC's rubber bonded spool with smooth finish bore creates wiping action remove contamination from the bore during every valve cycle. The Balanced design produces precise repeatability regardless of inlet pressure fluctuations - giving consistent machine performance regardless of plant environment. Our one piece bonded seal spool means longer life and easy maintenance. Their balanced spool means the valve can be piped as a 4-way, 3-way, 2-way, normally closed or normally open or can be used for vacuum, diverter or selector applications. Direct acting valve models can handle vacuum pressures to 120 psi and can be operated as a normally open, normally closed, two or three way, selector or diverter allowing the valve to be used in a variety of applications and reducing the need to stock multiple valves MAC 4-way valves offer solenoid pilot operated, air pilot or manual operation.
